ADM1487屬于集成電路（IC）的驅(qū)動(dòng)器接收器收發(fā)器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADM1487驅(qū)動(dòng)器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長(zhǎng)電纜或印制線進(jìn)行通信。確切的功能會(huì)因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對(duì)于通信用途可能并非絕對(duì)必要，但對(duì)于可能的使用環(huán)境卻是明智之選。

GENERAL DESCRIPTION

The ADM1487 is an ultra-low power RS-485/RS-422 transceiver consisting of one driver and one receiver per package. Quiescent operating current is typically 80μA and 1μA in shutdown mode. The driver and receiver both have three-state outputs. This allows multiple drivers to be connected to an RS-485/RS-422 bus, or several receiver outputs to be connected to a serial data bus. The driver will maintain a high-impedance output state even with power off, while the receiver features fail-safe operation that guarantees a logic high output if the inputs are left open-circuit.

FEATURES

Low Power - 120μA Max ICC with Driver Disabled

High Input Impedance — Up to 256 Transceivers on Bus

Low-Current (1μA) Shutdown Mode

Slew Rate Control for Error-Free Data

Transmission and Low EMI

±10kV ESD Protection (Human Body Model) on

RS-485 I/O pins

Thermal Protection of Driver

Glitch-Free Driver Power-Up Allows Hot Connection

Driver Maintains High Output Impedance with Power

Off

Wide Common-Mode Range Allows ±7V Ground Differences Between Devices

Pin-Compatible with Industry Standard 75176

APPLICATIONS

Battery-Powered RS-485/RS-422 Systems

Level Translation